[thirdparty/git.git] / builtin / config.c

#include "builtin.h"
#include "cache.h"
#include "color.h"
#include "parse-options.h"

static const char *const builtin_config_usage[] = {
	"git config [options]",
	NULL
};

static char *key;
static regex_t *key_regexp;
static regex_t *regexp;
static int show_keys;
static int use_key_regexp;
static int do_all;
static int do_not_match;
static int seen;
static char delim = '=';
static char key_delim = ' ';
static char term = '\n';

static int use_global_config, use_system_config, use_local_config;
static const char *given_config_file;
static int actions, types;
static const char *get_color_slot, *get_colorbool_slot;
static int end_null;

#define ACTION_GET (1<<0)
#define ACTION_GET_ALL (1<<1)
#define ACTION_GET_REGEXP (1<<2)
#define ACTION_REPLACE_ALL (1<<3)
#define ACTION_ADD (1<<4)
#define ACTION_UNSET (1<<5)
#define ACTION_UNSET_ALL (1<<6)
#define ACTION_RENAME_SECTION (1<<7)
#define ACTION_REMOVE_SECTION (1<<8)
#define ACTION_LIST (1<<9)
#define ACTION_EDIT (1<<10)
#define ACTION_SET (1<<11)
#define ACTION_SET_ALL (1<<12)
#define ACTION_GET_COLOR (1<<13)
#define ACTION_GET_COLORBOOL (1<<14)

#define TYPE_BOOL (1<<0)
#define TYPE_INT (1<<1)
#define TYPE_BOOL_OR_INT (1<<2)
#define TYPE_PATH (1<<3)

static struct option builtin_config_options[] = {
	OPT_GROUP("Config file location"),
	OPT_BOOLEAN(0, "global", &use_global_config, "use global config file"),
	OPT_BOOLEAN(0, "system", &use_system_config, "use system config file"),
	OPT_BOOLEAN(0, "local", &use_local_config, "use repository config file"),
	OPT_STRING('f', "file", &given_config_file, "file", "use given config file"),
	OPT_GROUP("Action"),
	OPT_BIT(0, "get", &actions, "get value: name [value-regex]", ACTION_GET),
	OPT_BIT(0, "get-all", &actions, "get all values: key [value-regex]", ACTION_GET_ALL),
	OPT_BIT(0, "get-regexp", &actions, "get values for regexp: name-regex [value-regex]", ACTION_GET_REGEXP),
	OPT_BIT(0, "replace-all", &actions, "replace all matching variables: name value [value_regex]", ACTION_REPLACE_ALL),
	OPT_BIT(0, "add", &actions, "adds a new variable: name value", ACTION_ADD),
	OPT_BIT(0, "unset", &actions, "removes a variable: name [value-regex]", ACTION_UNSET),
	OPT_BIT(0, "unset-all", &actions, "removes all matches: name [value-regex]", ACTION_UNSET_ALL),
	OPT_BIT(0, "rename-section", &actions, "rename section: old-name new-name", ACTION_RENAME_SECTION),
	OPT_BIT(0, "remove-section", &actions, "remove a section: name", ACTION_REMOVE_SECTION),
	OPT_BIT('l', "list", &actions, "list all", ACTION_LIST),
	OPT_BIT('e', "edit", &actions, "opens an editor", ACTION_EDIT),
	OPT_STRING(0, "get-color", &get_color_slot, "slot", "find the color configured: [default]"),
	OPT_STRING(0, "get-colorbool", &get_colorbool_slot, "slot", "find the color setting: [stdout-is-tty]"),
	OPT_GROUP("Type"),
	OPT_BIT(0, "bool", &types, "value is \"true\" or \"false\"", TYPE_BOOL),
	OPT_BIT(0, "int", &types, "value is decimal number", TYPE_INT),
	OPT_BIT(0, "bool-or-int", &types, "value is --bool or --int", TYPE_BOOL_OR_INT),
	OPT_BIT(0, "path", &types, "value is a path (file or directory name)", TYPE_PATH),
	OPT_GROUP("Other"),
	OPT_BOOLEAN('z', "null", &end_null, "terminate values with NUL byte"),
	OPT_END(),
};

static void check_argc(int argc, int min, int max) {
	if (argc >= min && argc <= max)
		return;
	error("wrong number of arguments");
	usage_with_options(builtin_config_usage, builtin_config_options);
}

static int show_all_config(const char *key_, const char *value_, void *cb)
{
	if (value_)
		printf("%s%c%s%c", key_, delim, value_, term);
	else
		printf("%s%c", key_, term);
	return 0;
}

static int show_config(const char *key_, const char *value_, void *cb)
{
	char value[256];
	const char *vptr = value;
	int must_free_vptr = 0;
	int dup_error = 0;
	int must_print_delim = 0;

	if (!use_key_regexp && strcmp(key_, key))
		return 0;
	if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
		return 0;
	if (regexp != NULL &&
	    (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
		return 0;

	if (show_keys) {
		printf("%s", key_);
		must_print_delim = 1;
	}
	if (seen && !do_all)
		dup_error = 1;
	if (types == TYPE_INT)
		sprintf(value, "%d", git_config_int(key_, value_?value_:""));
	else if (types == TYPE_BOOL)
		vptr = git_config_bool(key_, value_) ? "true" : "false";
	else if (types == TYPE_BOOL_OR_INT) {
		int is_bool, v;
		v = git_config_bool_or_int(key_, value_, &is_bool);
		if (is_bool)
			vptr = v ? "true" : "false";
		else
			sprintf(value, "%d", v);
	} else if (types == TYPE_PATH) {
		git_config_pathname(&vptr, key_, value_);
		must_free_vptr = 1;
	} else if (value_) {
		vptr = value_;
	} else {
		/* Just show the key name */
		vptr = "";
		must_print_delim = 0;
	}
	seen++;
	if (dup_error) {
		error("More than one value for the key %s: %s",
				key_, vptr);
	}
	else {
		if (must_print_delim)
			printf("%c", key_delim);
		printf("%s%c", vptr, term);
	}
	if (must_free_vptr)
		/* If vptr must be freed, it's a pointer to a
		 * dynamically allocated buffer, it's safe to cast to
		 * const.
		*/
		free((char *)vptr);

	return 0;
}

static int get_value(const char *key_, const char *regex_)
{
	int ret = -1;
	char *global = NULL, *repo_config = NULL;
	const char *system_wide = NULL, *local;

	local = config_exclusive_filename;
	if (!local) {
		const char *home = getenv("HOME");
		local = repo_config = git_pathdup("config");
		if (home)
			global = xstrdup(mkpath("%s/.gitconfig", home));
		if (git_config_system())
			system_wide = git_etc_gitconfig();
	}

	if (use_key_regexp) {
		char *tl;

		/*
		 * NEEDSWORK: this naive pattern lowercasing obviously does not
		 * work for more complex patterns like "^[^.]*Foo.*bar".
		 * Perhaps we should deprecate this altogether someday.
		 */

		key = xstrdup(key_);
		for (tl = key + strlen(key) - 1;
		     tl >= key && *tl != '.';
		     tl--)
			*tl = tolower(*tl);
		for (tl = key; *tl && *tl != '.'; tl++)
			*tl = tolower(*tl);

		key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
		if (regcomp(key_regexp, key, REG_EXTENDED)) {
			fprintf(stderr, "Invalid key pattern: %s\n", key_);
			free(key);
			goto free_strings;
		}
	} else {
		if (git_config_parse_key(key_, &key, NULL))
			goto free_strings;
	}

	if (regex_) {
		if (regex_[0] == '!') {
			do_not_match = 1;
			regex_++;
		}

		regexp = (regex_t*)xmalloc(sizeof(regex_t));
		if (regcomp(regexp, regex_, REG_EXTENDED)) {
			fprintf(stderr, "Invalid pattern: %s\n", regex_);
			goto free_strings;
		}
	}

	if (do_all && system_wide)
		git_config_from_file(show_config, system_wide, NULL);
	if (do_all && global)
		git_config_from_file(show_config, global, NULL);
	if (do_all)
		git_config_from_file(show_config, local, NULL);
	git_config_from_parameters(show_config, NULL);
	if (!do_all && !seen)
		git_config_from_file(show_config, local, NULL);
	if (!do_all && !seen && global)
		git_config_from_file(show_config, global, NULL);
	if (!do_all && !seen && system_wide)
		git_config_from_file(show_config, system_wide, NULL);

	free(key);
	if (regexp) {
		regfree(regexp);
		free(regexp);
	}

	if (do_all)
		ret = !seen;
	else
		ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;

free_strings:
	free(repo_config);
	free(global);
	return ret;
}

static char *normalize_value(const char *key, const char *value)
{
	char *normalized;

	if (!value)
		return NULL;

	if (types == 0 || types == TYPE_PATH)
		/*
		 * We don't do normalization for TYPE_PATH here: If
		 * the path is like ~/foobar/, we prefer to store
		 * "~/foobar/" in the config file, and to expand the ~
		 * when retrieving the value.
		 */
		normalized = xstrdup(value);
	else {
		normalized = xmalloc(64);
		if (types == TYPE_INT) {
			int v = git_config_int(key, value);
			sprintf(normalized, "%d", v);
		}
		else if (types == TYPE_BOOL)
			sprintf(normalized, "%s",
				git_config_bool(key, value) ? "true" : "false");
		else if (types == TYPE_BOOL_OR_INT) {
			int is_bool, v;
			v = git_config_bool_or_int(key, value, &is_bool);
			if (!is_bool)
				sprintf(normalized, "%d", v);
			else
				sprintf(normalized, "%s", v ? "true" : "false");
		}
	}

	return normalized;
}

static int get_color_found;
static const char *get_color_slot;
static const char *get_colorbool_slot;
static char parsed_color[COLOR_MAXLEN];

static int git_get_color_config(const char *var, const char *value, void *cb)
{
	if (!strcmp(var, get_color_slot)) {
		if (!value)
			config_error_nonbool(var);
		color_parse(value, var, parsed_color);
		get_color_found = 1;
	}
	return 0;
}

static void get_color(const char *def_color)
{
	get_color_found = 0;
	parsed_color[0] = '\0';
	git_config(git_get_color_config, NULL);

	if (!get_color_found && def_color)
		color_parse(def_color, "command line", parsed_color);

	fputs(parsed_color, stdout);
}

static int get_colorbool_found;
static int get_diff_color_found;
static int get_color_ui_found;
static int git_get_colorbool_config(const char *var, const char *value,
		void *cb)
{
	if (!strcmp(var, get_colorbool_slot))
		get_colorbool_found = git_config_colorbool(var, value);
	else if (!strcmp(var, "diff.color"))
		get_diff_color_found = git_config_colorbool(var, value);
	else if (!strcmp(var, "color.ui"))
		get_color_ui_found = git_config_colorbool(var, value);
	return 0;
}

static int get_colorbool(int print)
{
	get_colorbool_found = -1;
	get_diff_color_found = -1;
	git_config(git_get_colorbool_config, NULL);

	if (get_colorbool_found < 0) {
		if (!strcmp(get_colorbool_slot, "color.diff"))
			get_colorbool_found = get_diff_color_found;
		if (get_colorbool_found < 0)
			get_colorbool_found = get_color_ui_found;
	}

	get_colorbool_found = want_color(get_colorbool_found);

	if (print) {
		printf("%s\n", get_colorbool_found ? "true" : "false");
		return 0;
	} else
		return get_colorbool_found ? 0 : 1;
}

int cmd_config(int argc, const char **argv, const char *prefix)
{
	int nongit = !startup_info->have_repository;
	char *value;

	config_exclusive_filename = getenv(CONFIG_ENVIRONMENT);

	argc = parse_options(argc, argv, prefix, builtin_config_options,
			     builtin_config_usage,
			     PARSE_OPT_STOP_AT_NON_OPTION);

	if (use_global_config + use_system_config + use_local_config + !!given_config_file > 1) {
		error("only one config file at a time.");
		usage_with_options(builtin_config_usage, builtin_config_options);
	}

	if (use_global_config) {
		char *home = getenv("HOME");
		if (home) {
			char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
			config_exclusive_filename = user_config;
		} else {
			die("$HOME not set");
		}
	}
	else if (use_system_config)
		config_exclusive_filename = git_etc_gitconfig();
	else if (use_local_config)
		config_exclusive_filename = git_pathdup("config");
	else if (given_config_file) {
		if (!is_absolute_path(given_config_file) && prefix)
			config_exclusive_filename = prefix_filename(prefix,
								    strlen(prefix),
								    given_config_file);
		else
			config_exclusive_filename = given_config_file;
	}

	if (end_null) {
		term = '\0';
		delim = '\n';
		key_delim = '\n';
	}

	if (HAS_MULTI_BITS(types)) {
		error("only one type at a time.");
		usage_with_options(builtin_config_usage, builtin_config_options);
	}

	if (get_color_slot)
	    actions |= ACTION_GET_COLOR;
	if (get_colorbool_slot)
	    actions |= ACTION_GET_COLORBOOL;

	if ((get_color_slot || get_colorbool_slot) && types) {
		error("--get-color and variable type are incoherent");
		usage_with_options(builtin_config_usage, builtin_config_options);
	}

	if (HAS_MULTI_BITS(actions)) {
		error("only one action at a time.");
		usage_with_options(builtin_config_usage, builtin_config_options);
	}
	if (actions == 0)
		switch (argc) {
		case 1: actions = ACTION_GET; break;
		case 2: actions = ACTION_SET; break;
		case 3: actions = ACTION_SET_ALL; break;
		default:
			usage_with_options(builtin_config_usage, builtin_config_options);
		}

	if (actions == ACTION_LIST) {
		check_argc(argc, 0, 0);
		if (git_config(show_all_config, NULL) < 0) {
			if (config_exclusive_filename)
				die_errno("unable to read config file '%s'",
					  config_exclusive_filename);
			else
				die("error processing config file(s)");
		}
	}
	else if (actions == ACTION_EDIT) {
		check_argc(argc, 0, 0);
		if (!config_exclusive_filename && nongit)
			die("not in a git directory");
		git_config(git_default_config, NULL);
		launch_editor(config_exclusive_filename ?
			      config_exclusive_filename : git_path("config"),
			      NULL, NULL);
	}
	else if (actions == ACTION_SET) {
		int ret;
		check_argc(argc, 2, 2);
		value = normalize_value(argv[0], argv[1]);
		ret = git_config_set(argv[0], value);
		if (ret == CONFIG_NOTHING_SET)
			error("cannot overwrite multiple values with a single value\n"
			"       Use a regexp, --add or --set-all to change %s.", argv[0]);
		return ret;
	}
	else if (actions == ACTION_SET_ALL) {
		check_argc(argc, 2, 3);
		value = normalize_value(argv[0], argv[1]);
		return git_config_set_multivar(argv[0], value, argv[2], 0);
	}
	else if (actions == ACTION_ADD) {
		check_argc(argc, 2, 2);
		value = normalize_value(argv[0], argv[1]);
		return git_config_set_multivar(argv[0], value, "^$", 0);
	}
	else if (actions == ACTION_REPLACE_ALL) {
		check_argc(argc, 2, 3);
		value = normalize_value(argv[0], argv[1]);
		return git_config_set_multivar(argv[0], value, argv[2], 1);
	}
	else if (actions == ACTION_GET) {
		check_argc(argc, 1, 2);
		return get_value(argv[0], argv[1]);
	}
	else if (actions == ACTION_GET_ALL) {
		do_all = 1;
		check_argc(argc, 1, 2);
		return get_value(argv[0], argv[1]);
	}
	else if (actions == ACTION_GET_REGEXP) {
		show_keys = 1;
		use_key_regexp = 1;
		do_all = 1;
		check_argc(argc, 1, 2);
		return get_value(argv[0], argv[1]);
	}
	else if (actions == ACTION_UNSET) {
		check_argc(argc, 1, 2);
		if (argc == 2)
			return git_config_set_multivar(argv[0], NULL, argv[1], 0);
		else
			return git_config_set(argv[0], NULL);
	}
	else if (actions == ACTION_UNSET_ALL) {
		check_argc(argc, 1, 2);
		return git_config_set_multivar(argv[0], NULL, argv[1], 1);
	}
	else if (actions == ACTION_RENAME_SECTION) {
		int ret;
		check_argc(argc, 2, 2);
		ret = git_config_rename_section(argv[0], argv[1]);
		if (ret < 0)
			return ret;
		if (ret == 0)
			die("No such section!");
	}
	else if (actions == ACTION_REMOVE_SECTION) {
		int ret;
		check_argc(argc, 1, 1);
		ret = git_config_rename_section(argv[0], NULL);
		if (ret < 0)
			return ret;
		if (ret == 0)
			die("No such section!");
	}
	else if (actions == ACTION_GET_COLOR) {
		get_color(argv[0]);
	}
	else if (actions == ACTION_GET_COLORBOOL) {
		if (argc == 1)
			color_stdout_is_tty = git_config_bool("command line", argv[0]);
		return get_colorbool(argc != 0);
	}

	return 0;
}

int cmd_repo_config(int argc, const char **argv, const char *prefix)
{
	fprintf(stderr, "WARNING: git repo-config is deprecated in favor of git config.\n");
	return cmd_config(argc, argv, prefix);
}
Commit	Line	Data
e12c095a	1	#include "builtin.h"
1b1e59c5	2	#include "cache.h"
9ce03522	3	#include "color.h"
d64ec16c	4	#include "parse-options.h"
1b1e59c5	5
d64ec16c FC	6	static const char *const builtin_config_usage[] = {
	7	"git config [options]",
	8	NULL
	9	};
4ddba79d	10
96f1e58f DR	11	static char *key;
	12	static regex_t *key_regexp;
	13	static regex_t *regexp;
	14	static int show_keys;
	15	static int use_key_regexp;
	16	static int do_all;
	17	static int do_not_match;
	18	static int seen;
2275d502 FL	19	static char delim = '=';
	20	static char key_delim = ' ';
	21	static char term = '\n';
4ddba79d	22
57210a67	23	static int use_global_config, use_system_config, use_local_config;
d64ec16c	24	static const char *given_config_file;
16c1e939	25	static int actions, types;
d64ec16c FC	26	static const char get_color_slot, get_colorbool_slot;
	27	static int end_null;
	28
	29	#define ACTION_GET (1<<0)
	30	#define ACTION_GET_ALL (1<<1)
	31	#define ACTION_GET_REGEXP (1<<2)
	32	#define ACTION_REPLACE_ALL (1<<3)
	33	#define ACTION_ADD (1<<4)
	34	#define ACTION_UNSET (1<<5)
	35	#define ACTION_UNSET_ALL (1<<6)
	36	#define ACTION_RENAME_SECTION (1<<7)
	37	#define ACTION_REMOVE_SECTION (1<<8)
	38	#define ACTION_LIST (1<<9)
	39	#define ACTION_EDIT (1<<10)
	40	#define ACTION_SET (1<<11)
	41	#define ACTION_SET_ALL (1<<12)
	42	#define ACTION_GET_COLOR (1<<13)
	43	#define ACTION_GET_COLORBOOL (1<<14)
	44
16c1e939 FC	45	#define TYPE_BOOL (1<<0)
	46	#define TYPE_INT (1<<1)
	47	#define TYPE_BOOL_OR_INT (1<<2)
1349484e	48	#define TYPE_PATH (1<<3)
16c1e939	49
d64ec16c FC	50	static struct option builtin_config_options[] = {
	51	OPT_GROUP("Config file location"),
	52	OPT_BOOLEAN(0, "global", &use_global_config, "use global config file"),
	53	OPT_BOOLEAN(0, "system", &use_system_config, "use system config file"),
57210a67	54	OPT_BOOLEAN(0, "local", &use_local_config, "use repository config file"),
23c6a803	55	OPT_STRING('f', "file", &given_config_file, "file", "use given config file"),
d64ec16c FC	56	OPT_GROUP("Action"),
	57	OPT_BIT(0, "get", &actions, "get value: name [value-regex]", ACTION_GET),
	58	OPT_BIT(0, "get-all", &actions, "get all values: key [value-regex]", ACTION_GET_ALL),
	59	OPT_BIT(0, "get-regexp", &actions, "get values for regexp: name-regex [value-regex]", ACTION_GET_REGEXP),
bf71b4b3	60	OPT_BIT(0, "replace-all", &actions, "replace all matching variables: name value [value_regex]", ACTION_REPLACE_ALL),
d64ec16c FC	61	OPT_BIT(0, "add", &actions, "adds a new variable: name value", ACTION_ADD),
	62	OPT_BIT(0, "unset", &actions, "removes a variable: name [value-regex]", ACTION_UNSET),
	63	OPT_BIT(0, "unset-all", &actions, "removes all matches: name [value-regex]", ACTION_UNSET_ALL),
	64	OPT_BIT(0, "rename-section", &actions, "rename section: old-name new-name", ACTION_RENAME_SECTION),
	65	OPT_BIT(0, "remove-section", &actions, "remove a section: name", ACTION_REMOVE_SECTION),
	66	OPT_BIT('l', "list", &actions, "list all", ACTION_LIST),
	67	OPT_BIT('e', "edit", &actions, "opens an editor", ACTION_EDIT),
	68	OPT_STRING(0, "get-color", &get_color_slot, "slot", "find the color configured: [default]"),
	69	OPT_STRING(0, "get-colorbool", &get_colorbool_slot, "slot", "find the color setting: [stdout-is-tty]"),
	70	OPT_GROUP("Type"),
16c1e939 FC	71	OPT_BIT(0, "bool", &types, "value is \"true\" or \"false\"", TYPE_BOOL),
16c1e939 FC	72	OPT_BIT(0, "int", &types, "value is decimal number", TYPE_INT),
ba048224	73	OPT_BIT(0, "bool-or-int", &types, "value is --bool or --int", TYPE_BOOL_OR_INT),
1349484e	74	OPT_BIT(0, "path", &types, "value is a path (file or directory name)", TYPE_PATH),
d64ec16c FC	75	OPT_GROUP("Other"),
	76	OPT_BOOLEAN('z', "null", &end_null, "terminate values with NUL byte"),
	77	OPT_END(),
	78	};
	79
	80	static void check_argc(int argc, int min, int max) {
	81	if (argc >= min && argc <= max)
	82	return;
	83	error("wrong number of arguments");
	84	usage_with_options(builtin_config_usage, builtin_config_options);
	85	}
	86
ef90d6d4	87	static int show_all_config(const char key_, const char value_, void *cb)
de791f15 PB	88	{
de791f15 PB	89	if (value_)
2275d502	90	printf("%s%c%s%c", key_, delim, value_, term);
de791f15	91	else
2275d502	92	printf("%s%c", key_, term);
de791f15 PB	93	return 0;
	94	}
	95
4b951b7e	96	static int show_config(const char key_, const char value_, void *cb)
4ddba79d	97	{
e098c6f8 JH	98	char value[256];
e098c6f8 JH	99	const char *vptr = value;
1349484e	100	int must_free_vptr = 0;
8f5ff31f	101	int dup_error = 0;
008e3cc5	102	int must_print_delim = 0;
e098c6f8	103
8f5ff31f JS	104	if (!use_key_regexp && strcmp(key_, key))
	105	return 0;
	106	if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
	107	return 0;
	108	if (regexp != NULL &&
9e4bbeb9	109	(do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
8f5ff31f JS	110	return 0;
8f5ff31f JS	111
b69ba460	112	if (show_keys) {
008e3cc5 MM	113	printf("%s", key_);
008e3cc5 MM	114	must_print_delim = 1;
b69ba460	115	}
8f5ff31f JS	116	if (seen && !do_all)
8f5ff31f JS	117	dup_error = 1;
16c1e939	118	if (types == TYPE_INT)
acb70149	119	sprintf(value, "%d", git_config_int(key_, value_?value_:""));
16c1e939	120	else if (types == TYPE_BOOL)
8f5ff31f	121	vptr = git_config_bool(key_, value_) ? "true" : "false";
16c1e939	122	else if (types == TYPE_BOOL_OR_INT) {
c35b0b58 JH	123	int is_bool, v;
	124	v = git_config_bool_or_int(key_, value_, &is_bool);
	125	if (is_bool)
	126	vptr = v ? "true" : "false";
	127	else
	128	sprintf(value, "%d", v);
1349484e MM	129	} else if (types == TYPE_PATH) {
	130	git_config_pathname(&vptr, key_, value_);
	131	must_free_vptr = 1;
008e3cc5 MM	132	} else if (value_) {
	133	vptr = value_;
	134	} else {
	135	/* Just show the key name */
	136	vptr = "";
	137	must_print_delim = 0;
c35b0b58	138	}
8f5ff31f JS	139	seen++;
	140	if (dup_error) {
	141	error("More than one value for the key %s: %s",
	142	key_, vptr);
4ddba79d	143	}
008e3cc5 MM	144	else {
	145	if (must_print_delim)
	146	printf("%c", key_delim);
2275d502	147	printf("%s%c", vptr, term);
008e3cc5	148	}
1349484e MM	149	if (must_free_vptr)
	150	/* If vptr must be freed, it's a pointer to a
	151	* dynamically allocated buffer, it's safe to cast to
	152	* const.
	153	*/
	154	free((char *)vptr);
8f5ff31f	155
4ddba79d JS	156	return 0;
	157	}
	158
4b951b7e	159	static int get_value(const char key_, const char regex_)
4ddba79d	160	{
5f1a63e0	161	int ret = -1;
5f1a63e0	162	char global = NULL, repo_config = NULL;
32043c9f	163	const char system_wide = NULL, local;
5f1a63e0	164
dc871831	165	local = config_exclusive_filename;
5f1a63e0 JS	166	if (!local) {
5f1a63e0 JS	167	const char *home = getenv("HOME");
a4f34cbb	168	local = repo_config = git_pathdup("config");
8f323c00	169	if (home)
9befac47	170	global = xstrdup(mkpath("%s/.gitconfig", home));
ab88c363 JK	171	if (git_config_system())
ab88c363 JK	172	system_wide = git_etc_gitconfig();
5f1a63e0	173	}
4ddba79d	174
2fa9a0fb	175	if (use_key_regexp) {
b09c53a3 LP	176	char *tl;
	177
	178	/*
	179	* NEEDSWORK: this naive pattern lowercasing obviously does not
	180	* work for more complex patterns like "^[^.]Foo.bar".
	181	* Perhaps we should deprecate this altogether someday.
	182	*/
	183
	184	key = xstrdup(key_);
	185	for (tl = key + strlen(key) - 1;
	186	tl >= key && *tl != '.';
	187	tl--)
	188	tl = tolower(tl);
	189	for (tl = key; tl && tl != '.'; tl++)
	190	tl = tolower(tl);
	191
2d7320d0	192	key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
2fa9a0fb	193	if (regcomp(key_regexp, key, REG_EXTENDED)) {
e098c6f8	194	fprintf(stderr, "Invalid key pattern: %s\n", key_);
b09c53a3	195	free(key);
5f1a63e0	196	goto free_strings;
2fa9a0fb	197	}
b09c53a3 LP	198	} else {
	199	if (git_config_parse_key(key_, &key, NULL))
	200	goto free_strings;
2fa9a0fb JS	201	}
2fa9a0fb JS	202
4ddba79d	203	if (regex_) {
f98d863d JS	204	if (regex_[0] == '!') {
	205	do_not_match = 1;
	206	regex_++;
	207	}
	208
2d7320d0	209	regexp = (regex_t*)xmalloc(sizeof(regex_t));
0a152171	210	if (regcomp(regexp, regex_, REG_EXTENDED)) {
4ddba79d	211	fprintf(stderr, "Invalid pattern: %s\n", regex_);
5f1a63e0	212	goto free_strings;
4ddba79d JS	213	}
	214	}
	215
32043c9f	216	if (do_all && system_wide)
ef90d6d4	217	git_config_from_file(show_config, system_wide, NULL);
5f1a63e0	218	if (do_all && global)
ef90d6d4	219	git_config_from_file(show_config, global, NULL);
8b1fa778 AR	220	if (do_all)
	221	git_config_from_file(show_config, local, NULL);
	222	git_config_from_parameters(show_config, NULL);
	223	if (!do_all && !seen)
	224	git_config_from_file(show_config, local, NULL);
5f1a63e0	225	if (!do_all && !seen && global)
ef90d6d4	226	git_config_from_file(show_config, global, NULL);
32043c9f	227	if (!do_all && !seen && system_wide)
ef90d6d4	228	git_config_from_file(show_config, system_wide, NULL);
5f1a63e0	229
4ddba79d	230	free(key);
0a152171 AW	231	if (regexp) {
	232	regfree(regexp);
	233	free(regexp);
4ddba79d JS	234	}
	235
	236	if (do_all)
5f1a63e0 JS	237	ret = !seen;
5f1a63e0 JS	238	else
dc2613de	239	ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
5f1a63e0 JS	240
5f1a63e0 JS	241	free_strings:
4cac42b1 JH	242	free(repo_config);
4cac42b1 JH	243	free(global);
5f1a63e0	244	return ret;
4ddba79d	245	}
1b1e59c5	246
186458b1	247	static char normalize_value(const char key, const char *value)
db1696b8 FL	248	{
	249	char *normalized;
	250
	251	if (!value)
	252	return NULL;
	253
1349484e MM	254	if (types == 0 \|\| types == TYPE_PATH)
	255	/*
	256	* We don't do normalization for TYPE_PATH here: If
	257	* the path is like ~/foobar/, we prefer to store
	258	* "~/foobar/" in the config file, and to expand the ~
	259	* when retrieving the value.
	260	*/
db1696b8 FL	261	normalized = xstrdup(value);
	262	else {
	263	normalized = xmalloc(64);
16c1e939	264	if (types == TYPE_INT) {
db1696b8 FL	265	int v = git_config_int(key, value);
	266	sprintf(normalized, "%d", v);
	267	}
16c1e939	268	else if (types == TYPE_BOOL)
db1696b8 FL	269	sprintf(normalized, "%s",
db1696b8 FL	270	git_config_bool(key, value) ? "true" : "false");
16c1e939	271	else if (types == TYPE_BOOL_OR_INT) {
c35b0b58 JH	272	int is_bool, v;
	273	v = git_config_bool_or_int(key, value, &is_bool);
	274	if (!is_bool)
	275	sprintf(normalized, "%d", v);
	276	else
	277	sprintf(normalized, "%s", v ? "true" : "false");
	278	}
db1696b8 FL	279	}
	280
	281	return normalized;
	282	}
	283
9ce03522 JH	284	static int get_color_found;
9ce03522 JH	285	static const char *get_color_slot;
b408457f	286	static const char *get_colorbool_slot;
9ce03522 JH	287	static char parsed_color[COLOR_MAXLEN];
9ce03522 JH	288
ef90d6d4	289	static int git_get_color_config(const char var, const char value, void *cb)
9ce03522 JH	290	{
9ce03522 JH	291	if (!strcmp(var, get_color_slot)) {
f769982d JH	292	if (!value)
f769982d JH	293	config_error_nonbool(var);
9ce03522 JH	294	color_parse(value, var, parsed_color);
	295	get_color_found = 1;
	296	}
	297	return 0;
	298	}
	299
0e854a28	300	static void get_color(const char *def_color)
9ce03522	301	{
9ce03522 JH	302	get_color_found = 0;
9ce03522 JH	303	parsed_color[0] = '\0';
ef90d6d4	304	git_config(git_get_color_config, NULL);
9ce03522 JH	305
	306	if (!get_color_found && def_color)
	307	color_parse(def_color, "command line", parsed_color);
	308
	309	fputs(parsed_color, stdout);
9ce03522 JH	310	}
9ce03522 JH	311
0f6f5a40	312	static int get_colorbool_found;
69243c2b	313	static int get_diff_color_found;
c659f55b	314	static int get_color_ui_found;
ef90d6d4 JS	315	static int git_get_colorbool_config(const char var, const char value,
ef90d6d4 JS	316	void *cb)
0f6f5a40	317	{
e269eb79 JK	318	if (!strcmp(var, get_colorbool_slot))
	319	get_colorbool_found = git_config_colorbool(var, value);
	320	else if (!strcmp(var, "diff.color"))
	321	get_diff_color_found = git_config_colorbool(var, value);
	322	else if (!strcmp(var, "color.ui"))
c659f55b	323	get_color_ui_found = git_config_colorbool(var, value);
0f6f5a40 JH	324	return 0;
	325	}
	326
0e854a28	327	static int get_colorbool(int print)
0f6f5a40	328	{
69243c2b JH	329	get_colorbool_found = -1;
69243c2b JH	330	get_diff_color_found = -1;
ef90d6d4	331	git_config(git_get_colorbool_config, NULL);
0f6f5a40	332
69243c2b	333	if (get_colorbool_found < 0) {
b408457f	334	if (!strcmp(get_colorbool_slot, "color.diff"))
69243c2b JH	335	get_colorbool_found = get_diff_color_found;
69243c2b JH	336	if (get_colorbool_found < 0)
c659f55b	337	get_colorbool_found = get_color_ui_found;
69243c2b JH	338	}
69243c2b JH	339
daa0c3d9 JK	340	get_colorbool_found = want_color(get_colorbool_found);
daa0c3d9 JK	341
0e854a28	342	if (print) {
0f6f5a40 JH	343	printf("%s\n", get_colorbool_found ? "true" : "false");
0f6f5a40 JH	344	return 0;
0e854a28 FC	345	} else
0e854a28 FC	346	return get_colorbool_found ? 0 : 1;
0f6f5a40 JH	347	}
0f6f5a40 JH	348
3ba7e6e2	349	int cmd_config(int argc, const char *argv, const char prefix)
1b1e59c5	350	{
3ba7e6e2	351	int nongit = !startup_info->have_repository;
4b951b7e	352	char *value;
7162dff3	353
dc871831 DB	354	config_exclusive_filename = getenv(CONFIG_ENVIRONMENT);
dc871831 DB	355
37782920 SB	356	argc = parse_options(argc, argv, prefix, builtin_config_options,
37782920 SB	357	builtin_config_usage,
d64ec16c FC	358	PARSE_OPT_STOP_AT_NON_OPTION);
d64ec16c FC	359
57210a67	360	if (use_global_config + use_system_config + use_local_config + !!given_config_file > 1) {
67052c9d FC	361	error("only one config file at a time.");
	362	usage_with_options(builtin_config_usage, builtin_config_options);
	363	}
	364
d64ec16c FC	365	if (use_global_config) {
	366	char *home = getenv("HOME");
	367	if (home) {
	368	char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
	369	config_exclusive_filename = user_config;
db1696b8	370	} else {
d64ec16c	371	die("$HOME not set");
db1696b8	372	}
d64ec16c FC	373	}
	374	else if (use_system_config)
	375	config_exclusive_filename = git_etc_gitconfig();
57210a67 SR	376	else if (use_local_config)
57210a67 SR	377	config_exclusive_filename = git_pathdup("config");
d64ec16c FC	378	else if (given_config_file) {
	379	if (!is_absolute_path(given_config_file) && prefix)
	380	config_exclusive_filename = prefix_filename(prefix,
	381	strlen(prefix),
65807ee6	382	given_config_file);
d64ec16c FC	383	else
	384	config_exclusive_filename = given_config_file;
	385	}
	386
	387	if (end_null) {
	388	term = '\0';
	389	delim = '\n';
	390	key_delim = '\n';
	391	}
	392
16c1e939 FC	393	if (HAS_MULTI_BITS(types)) {
	394	error("only one type at a time.");
	395	usage_with_options(builtin_config_usage, builtin_config_options);
	396	}
	397
d64ec16c FC	398	if (get_color_slot)
	399	actions \|= ACTION_GET_COLOR;
	400	if (get_colorbool_slot)
	401	actions \|= ACTION_GET_COLORBOOL;
	402
c2387358 FC	403	if ((get_color_slot \|\| get_colorbool_slot) && types) {
	404	error("--get-color and variable type are incoherent");
	405	usage_with_options(builtin_config_usage, builtin_config_options);
	406	}
	407
d64ec16c FC	408	if (HAS_MULTI_BITS(actions)) {
	409	error("only one action at a time.");
	410	usage_with_options(builtin_config_usage, builtin_config_options);
	411	}
	412	if (actions == 0)
	413	switch (argc) {
	414	case 1: actions = ACTION_GET; break;
	415	case 2: actions = ACTION_SET; break;
	416	case 3: actions = ACTION_SET_ALL; break;
	417	default:
	418	usage_with_options(builtin_config_usage, builtin_config_options);
db1696b8	419	}
d64ec16c FC	420
d64ec16c FC	421	if (actions == ACTION_LIST) {
225a9caf	422	check_argc(argc, 0, 0);
d64ec16c FC	423	if (git_config(show_all_config, NULL) < 0) {
d64ec16c FC	424	if (config_exclusive_filename)
d824cbba TR	425	die_errno("unable to read config file '%s'",
d824cbba TR	426	config_exclusive_filename);
d64ec16c FC	427	else
d64ec16c FC	428	die("error processing config file(s)");
db1696b8	429	}
1b1e59c5	430	}
d64ec16c	431	else if (actions == ACTION_EDIT) {
225a9caf	432	check_argc(argc, 0, 0);
d212ca17 FC	433	if (!config_exclusive_filename && nongit)
d212ca17 FC	434	die("not in a git directory");
d64ec16c FC	435	git_config(git_default_config, NULL);
	436	launch_editor(config_exclusive_filename ?
	437	config_exclusive_filename : git_path("config"),
	438	NULL, NULL);
	439	}
	440	else if (actions == ACTION_SET) {
5a2df368	441	int ret;
d64ec16c FC	442	check_argc(argc, 2, 2);
d64ec16c FC	443	value = normalize_value(argv[0], argv[1]);
5a2df368 MG	444	ret = git_config_set(argv[0], value);
	445	if (ret == CONFIG_NOTHING_SET)
	446	error("cannot overwrite multiple values with a single value\n"
	447	" Use a regexp, --add or --set-all to change %s.", argv[0]);
	448	return ret;
d64ec16c FC	449	}
	450	else if (actions == ACTION_SET_ALL) {
	451	check_argc(argc, 2, 3);
	452	value = normalize_value(argv[0], argv[1]);
	453	return git_config_set_multivar(argv[0], value, argv[2], 0);
	454	}
	455	else if (actions == ACTION_ADD) {
	456	check_argc(argc, 2, 2);
	457	value = normalize_value(argv[0], argv[1]);
	458	return git_config_set_multivar(argv[0], value, "^$", 0);
	459	}
	460	else if (actions == ACTION_REPLACE_ALL) {
	461	check_argc(argc, 2, 3);
	462	value = normalize_value(argv[0], argv[1]);
	463	return git_config_set_multivar(argv[0], value, argv[2], 1);
	464	}
	465	else if (actions == ACTION_GET) {
	466	check_argc(argc, 1, 2);
	467	return get_value(argv[0], argv[1]);
	468	}
	469	else if (actions == ACTION_GET_ALL) {
	470	do_all = 1;
	471	check_argc(argc, 1, 2);
	472	return get_value(argv[0], argv[1]);
	473	}
	474	else if (actions == ACTION_GET_REGEXP) {
	475	show_keys = 1;
	476	use_key_regexp = 1;
	477	do_all = 1;
	478	check_argc(argc, 1, 2);
	479	return get_value(argv[0], argv[1]);
	480	}
	481	else if (actions == ACTION_UNSET) {
	482	check_argc(argc, 1, 2);
	483	if (argc == 2)
	484	return git_config_set_multivar(argv[0], NULL, argv[1], 0);
	485	else
	486	return git_config_set(argv[0], NULL);
	487	}
	488	else if (actions == ACTION_UNSET_ALL) {
	489	check_argc(argc, 1, 2);
	490	return git_config_set_multivar(argv[0], NULL, argv[1], 1);
	491	}
	492	else if (actions == ACTION_RENAME_SECTION) {
	493	int ret;
	494	check_argc(argc, 2, 2);
	495	ret = git_config_rename_section(argv[0], argv[1]);
	496	if (ret < 0)
	497	return ret;
	498	if (ret == 0)
	499	die("No such section!");
	500	}
	501	else if (actions == ACTION_REMOVE_SECTION) {
	502	int ret;
	503	check_argc(argc, 1, 1);
	504	ret = git_config_rename_section(argv[0], NULL);
	505	if (ret < 0)
	506	return ret;
	507	if (ret == 0)
	508	die("No such section!");
	509	}
	510	else if (actions == ACTION_GET_COLOR) {
	511	get_color(argv[0]);
	512	}
513	else if (actions == ACTION_GET_COLORBOOL) {
514	if (argc == 1)
e269eb79	515	color_stdout_is_tty = git_config_bool("command line", argv[0]);
d64ec16c FC	516	return get_colorbool(argc != 0);
	517	}
	518
1b1e59c5 JS	519	return 0;
1b1e59c5 JS	520	}
6390c905 RS	521
	522	int cmd_repo_config(int argc, const char *argv, const char prefix)
	523	{
	524	fprintf(stderr, "WARNING: git repo-config is deprecated in favor of git config.\n");
	525	return cmd_config(argc, argv, prefix);
	526	}